From Sahih Muslim (Hadith 5002):
Jabir b. 'Abdullah reported that Allah's Messenger (ﷺ) sent on in expedition a detachment consisting of three hundred (persons) and appointed Abu 'Ubaida b. Jarrah as their chief. Their provisions ran short:'Abu 'Ubaida collected their provisions in the provision bag. and he fed us (for some time). Later on when the provisions ran short he gave us one date every day
Reference: Muslim 5002